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Finding the Fourth Proportional to 92,365.44, 138,519 and 39,760.80

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Solution

The fourth proportional to 92,365.44, 138,519 and 39,760.80 is: 59,628.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,365.44 : 138,519 = 39,760.80 : x
  2. Step 2: Convert to fraction form
    92,365.44/138,519 = 39,760.80/x
  3. Step 3: Cross multiply
    92,365.44x = 138,519 × 39,760.80
  4. Step 4: Simplify right side
    92,365.44x = 5,507,626,255.20
  5. Step 5: Solve for x
    x = 5,507,626,255.20/92,365.44
  6. Step 6: Final answer
    x = 59,628.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.